doc: add styles in Action stylesheet

src/components/Actors/styles.js

@@ -0,0 +1,15 @@
+import { makeStyles } from '@mui/styles';
+
+export default makeStyles(() => ({
+    image: {
+        maxWidth: '90%',
+        borderRadius: '20px',
+        objectFit: 'cover',
+        boxShadow: '0.5em 0.5em 1em',
+    },
+    btns: {
+        marginTop: '2rem',
+        display: 'flex',
+        justifyContent: 'space-around',
+    },
+}));